Using methyl methacrylate(MMA),butyl acrylate(BA)and hexafluorobutyl acry-late(HFBA)as main raw materials,we prepared self-crosslinked fluorocarbon polymer emulsion with core-shell structure via soap-free emulsion polymerization when the conception of particle design and polymer morphology was adopted.Moreover,the influence of mole ratio of BA to MAA,pH value on the oligomer was studied.And the effects of the added amount of oligomer,self-crosslinked monomer and HFBA,mass ratio of BA to MMA,reaction temperature and the initiator on the polymerization technology and the performance of the product,were investigated and optimized.The structure and performance of the fluorocarbon polymer emulsion were characterized and tested with FTIR,TEM, MFT and contact angle and water absorption of the latex film.The experimental results show that the optimal conditions for preparing fluorocarbon polymer emulsion are as follows:for preparing the oligomer,mol ratio of BA to MAA is equal to 1.0:1.60,and pH value is controlled within the range of 8.0 and 9.0;for preparing fluorocarbon polymer emulsion,the added amount of oligmer[P(BA/MANa)] is 6%;mass ratio of BA to MMA is 40:60;the added amount of self-crosslinked monomer is 2%,the added amount of HFBA is 15%;reaction temperature is 80℃;the mixture of potassium persulfate and sodium bisulfite is used as the initiator.The film-forming stability of the fluorocarbon polymer emul-sion and the performance of the latex film,which is prepared with the soap-free emulsion polymeri-zation,are better than that prepared with the conventional emulsion polymerization.
参考文献
| [1] | 曹雪琴,李战雄,陈国强.含氟丙烯酸酯共聚乳液的制备及在织物上的应用[J].精细化工,2006(12):1194-1197. |
| [2] | ALESSANDRINI G. .Comparative Evaluation of Fluorinated and Unfluorinated Acrylic Copolymers as Water-Repelent Coating Materials for Stone[J].Journal of Applied Polymer Science,2000(6):962-977. |
| [3] | 周钰明,徐群华,黄静艳.全氟烷基乙基丙烯酸酯共聚物的制备和表面性质[J].高等学校化学学报,2001(12):2126-2127. |
| [4] | 程时远,陈艳军,王康丽.含氟丙烯酸酯三元共聚物乳液的研究[J].高分子学报,2002(05):560-565. |
| [5] | 赵兴顺,丁小斌,张军华,郑朝晖,潘毅,朱珠,彭宇行.含氟丙烯酸酯共聚乳液及其膜表面特性的研究[J].高分子学报,2004(02):196-200. |
| [6] | Jinzhang Gao;Xuemei Wang;Yunxia Wei .Synthesis and characterization of a novel fluorine-containing polymer emulsion with core/shell structure[J].Journal of Fluorine Chemistry,2006(2):282-286. |
| [7] | Kang K;Kan CY;Du Y;Liu DS .Synthesis and properties of soap-free poly(methyl methacrylate-ethyl acrylate-methacrylic acid) latex particles prepared by seeded emulsion polymerization[J].European Polymer Journal,2005(3):439-445. |
| [8] | 郭林晖,马承银,陈红梅.无皂乳液聚合的理论研究、制备方法及应用[J].化学世界,2003(01):49-52. |
| [9] | 王金刚,朱晓丽,张志国,孔祥正.功能单体α-烯烃磺酸钠用于无皂乳液共聚合[J].高分子学报,2006(07):903-907. |
| [10] | 岳庆磊,周文华,潘湛昌,杨辉荣.无皂乳液聚合研究进展[J].精细化工,2003(12):766-768. |
| [11] | Ha JW.;Park IJ.;Kim DK.;Kim JH.;Lee SB. .Surface properties of core-shell particles containing perfluoroalkyl acrylate in shell[J].Surface Science: A Journal Devoted to the Physics and Chemistry of Interfaces,2003(0):328-333. |
| [12] | Li ZM.;Yang JH.;Yu YZ.;Xu XZ.;Meng XT.;Yu WJ.;Xu XL.;Li L.;Yue XY. .Morphological characterization of the core-shell latex particle by transmission electron microscopy and image analysis[J].Journal of Applied Polymer Science,2003(3):855-861. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%